Seat-spring.



L. A. YOUNG.

S PRING.

APPLICATIO D FEB.25,1916. 1,206,073.

u I n l AIII U Patented Nov. 28, 1916.

UNTTED sTATEs PATENT oEEioE.

LEONARD A. YOUNG, OF HIGHLAND PARK, MICHIGAN.

SEAT-SPRING.

Highland Park, county of Wayne, State of Michigan, have invented a certain new and useful Improvement in Seat-Springs, and

declare the following to be la full, clear, and

exact description of the same, such as will @enable others skilled in the art t which, it

pertains to make and use `the same, reference being had to the accompanying drawings, which form a part of this speclcation.

This invention relates to 'seat springs,

whether used for the seat proper or for the Y seat back.

The improved features comprise the use of a trussed double rim which makes a very strong margin for the seat spring; and a webbing provided with an elastic reinforcement. The webbing is of such a character that it provides a strong but yielding supporting surface over the top of the spiral springs. This supporting surface tends to eliminate the unevenness due to` the tops of the spiral springs. This is very advantageous as it makes possible. the upholstering of the springs with a much thinner layer of hair, thereby saving in this expensive padding.l This webbing also absolutely prevents any of the hair droppingdown between the spiral springs to interfere with their action and to initially require more hair for the cushion to take the place of that which in time sags down.

The character of the webbing with the elastic reinforcement land the character of the trussed ring will more fully appear in the specifications following. y

VIn the drawings, lFigure 1 is a top plan view of the cushion with the webbing on top of the springs, some of the parts being broken away to show the parts underneath. Fig. 2 is a cross section through 'the upholstered cushion. Fig. 3 is a sectional bottom plan view taken on the line A--A of Fig. 2, and being limited to one-half of the spring. This view' omits the outer rim wire.

Fig. 4 is a similar view with the outer rim' wire and the webbing in place.

Specification of Letters Patent.

Patented Nov. 28, 1916.

Application lfiled February 25, 1916. Serial No. 80,499.

a designates the spiral springs, which are of the hour-glass type, although the 'exact form of the spiral is not material.

b designates the lower rim of S section. in which are pinched the bottom coils of the spiral springs and the bottom edge of the upholstering facing c. The springs are preferably tied together at the top by small links d.

The upper rimcomprises a trussed double rim. The inner rim wire e is first assembled on the springs by securing it to the top coils of the spiral spring by clips f. This inner rimv is provided with a plurality of offsets 'g forming, lin connection with the outer rim, trusses very effective for the purpose of .resisting side thrusts upon the rim. .E

The webbing m which forms the supporting surface above the spiral springs .comprises a two layer fabric sewed together by parallel linesof stitches h forming pockets in which are contained flat zig-zag springs z'.

The fabric is preferably of a heavy grade of cheese-cloth. Preferably I employ twowebbings, one (m) with the elastic reinforcement (the zig-zag wires) running in one di. rection, and the other (n) with the elastic reinforcement running in a direction at right angles to the direction of the zig-zag springs of the other webbing. Thus in Fig. 1 the pockets and zig-zag springs of the under webbing m run lengthwise of the spring and the pockets and zig-zag springs of the upper webbing In.

' run crosswise of the seat spring. It will be ap- .of the spiral springs even when the spring is sat upon beforethe hair has been put in place. Especially does the webbing cause the spiral springs to lose their identity so far as sensation is concerned when the two\ layers of webbing with intercrossed zig-zag runs are employed.

A convenient way of assembling the seat spring is indicated in Figs. 3 and Ll. The inner thrust rim wire is first assembled upon the spiral springs by banding the sameA to the top coils of the said 'spiral springs so that it can hinge with respect to the same. The inner rim can also hinge on its connections to the top coil of the spiral springs. The webbing (both layers if two layers are used)ris secured to the -outer rim wire y' be. fore that rim wire is assembled-on the scat spring. ,This fastening of the webbing to the'rim wire j is eiiected by the small band clips k. The outer rim wire and the webhing may then be laid Over the tops of the spiral springs and the inner rim wire and the band clips l pinched over the outer rim wire, the webbing and the oiset portions of the inner trussed rim wire.

What I claim is:

l. In a spring construction, the combination of a plurality ci springs, means upon` which the springs are carried, and a webbing for laying over the tops of the springs and, provided with a reinforcementV in the form of flat springs elastic in one direction stretched over the tops of the springs.

2. In a spring construction, the combination of a plurality of spiral springs, means -for carrying the same, and a pocketed fabric having flat extensible springs in the said pockets, the said poclreted fabric being arranged over the tops of the spiral springs.

3. In a spring construction,the combination of a plurality of spiral springs, means for carrying the saine, and a webbing comprising a fabric provided with pockets. extending 'rorn one side of the spring construction to another, and having dat zig-zag springs located in the said pockets.

4. In a spring construction, the combina# tion of ,a plurality' ci spiral springs, means for carrying the same, and a webbing for stretching over the top of the springs, ccmprising a fabric sewed with parallel lines of stitching to 'form parallel extending pockets and provided with zig-zag springs located in said pockets.

5. In a spring construction, the combination of a plurality of spiral springs, means for carrying the same, and a webbing for stretching over the tops of the spiral springs, comprising a two-layer fabric stitched to `torni pockets and provided with zig-zag springs contained in said pockets.

6. In a spring construction, the combination of a plurality ci spiral springs, means for carrying the springs, and a webbing for the tops of the springs. comprising a twov layer 'fabric sewed together to forni parallel pockets extendingtroni one side to the other means for carrying the springs, and a supporting fabric lying on top of the springs, comprising two layers of fabric sewed together with parallel lines of stitches forming parallel extending'pockets running from side to side of the complete seat spring construction and having Hat zig-zag springs, one contained in each pocket and extending from one side of the complete'seat spring construction to the other.

8. In a spring construction, the combination of a plurality of'spiral springs, means for carrying the springs, land a supporting surface for drawing over the tops of the spiral springs, comprising two webbings one of which is provided yvi'th an elastic reinforcement elastic in one direction only and f tion of a plurality of spiral springs, means y for carrying the same, and a supporting surface for drawing over the top of the supporting springs, comprising. two webbings each webbing comprising a fabric provided with pockets containing zig-zag springs, the pockets and the zig-zag springs ofone webbing extending in one direction and the pockets and vzig-zag springs of the other webbing extending-in a direction at right angles to the direction of the pockets and the zig-zag springs of the first-mentioned webbing.

y 10.v In a spring construction, the combination of 'a plurality of spiral springs, -means for carrying the springs, and a supporting 4surface 'for drawing over the tops of the springs, comprising a series of zig-zag4 springs' extending from one side of the complete seatback spring tothe other, and a second series of zig-zag springs superimposed on the rst zig-zag springs and runtrussed rim construction.

13. In a seat spring, the combination of a plurality of spiral springs, and means for carrying the same, including a. rim compriscarrying the same, including a rim comprising an inner rim Wire hinged to the spiral 1) ing an inner rim Wire having offset portions springs and having offset portions, and an forming trusses and an outer rim Wire tied outer rim Wire hinged to the inner rim Wire to the said inner rim Wire at the trussed porat the offset portions. i tions. In testimony whereof, I sign this specili- 14. In a seat spring, the combination ,of a cation. l plurality of spiral springs, and means for LEONARD A. YOUNG. 

